What was the role of the water test tube in each phase AND why does water work so well in this capacity?

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic